Elliott Management's Paul Singer isn't limiting his outspokenness to the World Economic Forum in Davos, Switzerland.

Singer last week told the gathering that the derivatives he loves trading are bad for society, and held a major forum focused on gay rights. Now, he's tackling all sorts of other hot-button issues in his quarterly letter to investors.

The missive, dated Jan. 27, touches on financial fraud, the minimum wage, gold, bitcoin and his firm's battle with Argentina.

On the latter, Singer dismissed a proposal by hedge funds led by Gramercy Fund Management to settle Elliott's dispute with Argentina in which those hedge fund creditors would pay Elliott. Elliott is seeking full repayment of bonds Argentina defaulted on in 2001, and has won court rulings that could force Argentina to default.

Singer said he'd be happy to cut a deal with Argentina, but rejected Gramercy's move as "a stunt."

"The only way this dispute can be resolved is for Argentina to negotiate in good faith with holders of its defaulted bonds," he continued. "If the Argentine government simply and at long last did what every other sovereign in need of restructuring has done and actually talked to its creditors, we are confident that this long-running saga could be resolved quickly and thoughtfully."

Argentina has vowed never to pay the holdouts from is 2005 and 2010 debt exchanges, calling them "vultures."

Last week in Davos, Singer pointed to the growing unrest in Argentina.

"There have been riots by police and lootings by citizens," he told The Wall Street Journal. "It's a sad thing because it's self-imposed by the government."

"We are willing for quite a while to sit down with Argentina. We could settle this thing in an afternoon."

Singer also, as is his wont, took up some major political issues in the letter, opposing an increased federal minimum wage while also calling for more aggressive prosecution of financial crimes.

"Put bluntly, these policies would destroy jobs and cause companies and even entire industries to move elsewhere," Singer wrote. "These movements are politically motivated—a way for politician to fake compassion."

Singer is similarly tough on banks, saying that many are actually breaking laws with impunity, and calling for stricter enforcement, including more prosecutions of law-breakers from within banks.

"Laws are not self-executing," he said, and "lawlessness is a slippery slope." If a law "is ignored in thousands of subtle ways, then over time the rule of law will be replaced by corruption and whim."

Singer also told investors what he thinks of the digital currency bitcoin, and he doesn't think much of it.

Singer said he was "shocked" by the crypto-currency's popularity, and that "there is no more reason to believe that bitcoin will stand the test of time that that governments will protect the value of government-created money."

Gold, by contrast, is "currently available at a good price."

"Gold is out of fashion, but we think the explanation for why it has been drifting down is not compelling," he wrote. "The economy seems stuck in the doldrums, but most so-called 'experts' have been changing their minds almost weekly about when they think the economy will finally begin a long-term acceleration to the upside."

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